alireza.zahani
دوشنبه 02 بهمن 1391, 20:49 عصر
public partial class Form1 : Form
{
Rectangle rubberBand,zoom_Rect;
Bitmap bmp,bmp_cut;
float m_Scalef = 1.0f;
Image image,myImage;
public Form1()
{
InitializeComponent();
bmp = (Bitmap)pictureBox1.Image;
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
Point pt = pictureBox1.PointToScreen(new Point(e.X, e.Y));
rubberBand = new Rectangle(pt.X, pt.Y, 1, 1);
ControlPaint.DrawReversibleFrame(rubberBand, pictureBox1.BackColor, FrameStyle.Dashed);
this.Invalidate();
}
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
return;
ControlPaint.DrawReversibleFrame(rubberBand, pictureBox1.BackColor, FrameStyle.Dashed);
Point pt = pictureBox1.PointToScreen(new Point(e.X, e.Y));
rubberBand = new Rectangle(rubberBand.X, rubberBand.Y, pt.X - rubberBand.X, pt.Y - rubberBand.Y);
ControlPaint.DrawReversibleFrame(rubberBand, pictureBox1.BackColor, FrameStyle.Dashed);
pictureBox1.Invalidate();
}
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
ControlPaint.DrawReversibleFrame(rubberBand, Color.Black, FrameStyle.Thick);
}
}
private void button2_Click(object sender, EventArgs e)
{
zoom_Rect = pictureBox1.RectangleToClient(rubberBand);
bmp_cut = new Bitmap(zoom_Rect.Width, zoom_Rect.Height);
Graphics g = Graphics.FromImage(bmp_cut);
image = pictureBox1.Image;
g.DrawImage(image, 0, 0, zoom_Rect, GraphicsUnit.Pixel);
pictureBox1.Image = bmp_cut;
g.Dispose();
}
private void button3_Click(object sender, EventArgs e)
{
panel1.Refresh();
if (comboBox1.SelectedIndex == 0)
m_Scalef = .25f;
if (comboBox1.SelectedIndex == 1)
m_Scalef = .5f;
if (comboBox1.SelectedIndex == 2)
m_Scalef = .75f;
if (comboBox1.SelectedIndex == 3)
m_Scalef = 1.0f;
if (comboBox1.SelectedIndex == 4)
m_Scalef = 2.0f;
m_Scalef = m_Scalef * 2.0f;
int a_Width, b_Height;
a_Width = (int)(rubberBand.Width * m_Scalef);
b_Height = (int)(rubberBand.Height * m_Scalef);
panel1.Size = new Size(a_Width, b_Height);
myImage = pictureBox1.Image;
Graphics g = panel1.CreateGraphics();
g.DrawImage(myImage, 0, 0, rubberBand.Width * m_Scalef, rubberBand.Height * m_Scalef);
Invalidate();
}
}
{
Rectangle rubberBand,zoom_Rect;
Bitmap bmp,bmp_cut;
float m_Scalef = 1.0f;
Image image,myImage;
public Form1()
{
InitializeComponent();
bmp = (Bitmap)pictureBox1.Image;
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
Point pt = pictureBox1.PointToScreen(new Point(e.X, e.Y));
rubberBand = new Rectangle(pt.X, pt.Y, 1, 1);
ControlPaint.DrawReversibleFrame(rubberBand, pictureBox1.BackColor, FrameStyle.Dashed);
this.Invalidate();
}
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
return;
ControlPaint.DrawReversibleFrame(rubberBand, pictureBox1.BackColor, FrameStyle.Dashed);
Point pt = pictureBox1.PointToScreen(new Point(e.X, e.Y));
rubberBand = new Rectangle(rubberBand.X, rubberBand.Y, pt.X - rubberBand.X, pt.Y - rubberBand.Y);
ControlPaint.DrawReversibleFrame(rubberBand, pictureBox1.BackColor, FrameStyle.Dashed);
pictureBox1.Invalidate();
}
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
ControlPaint.DrawReversibleFrame(rubberBand, Color.Black, FrameStyle.Thick);
}
}
private void button2_Click(object sender, EventArgs e)
{
zoom_Rect = pictureBox1.RectangleToClient(rubberBand);
bmp_cut = new Bitmap(zoom_Rect.Width, zoom_Rect.Height);
Graphics g = Graphics.FromImage(bmp_cut);
image = pictureBox1.Image;
g.DrawImage(image, 0, 0, zoom_Rect, GraphicsUnit.Pixel);
pictureBox1.Image = bmp_cut;
g.Dispose();
}
private void button3_Click(object sender, EventArgs e)
{
panel1.Refresh();
if (comboBox1.SelectedIndex == 0)
m_Scalef = .25f;
if (comboBox1.SelectedIndex == 1)
m_Scalef = .5f;
if (comboBox1.SelectedIndex == 2)
m_Scalef = .75f;
if (comboBox1.SelectedIndex == 3)
m_Scalef = 1.0f;
if (comboBox1.SelectedIndex == 4)
m_Scalef = 2.0f;
m_Scalef = m_Scalef * 2.0f;
int a_Width, b_Height;
a_Width = (int)(rubberBand.Width * m_Scalef);
b_Height = (int)(rubberBand.Height * m_Scalef);
panel1.Size = new Size(a_Width, b_Height);
myImage = pictureBox1.Image;
Graphics g = panel1.CreateGraphics();
g.DrawImage(myImage, 0, 0, rubberBand.Width * m_Scalef, rubberBand.Height * m_Scalef);
Invalidate();
}
}